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VizieR

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J/A+A/540/A106/dr8gal SDSS-DR8 groups and clusters of galaxies (Tempel+, 2012)
Galaxy parameters (576493 rows)
  recno=416699
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ColumnValue  Explain   (UCD)
_RAJ200012 17 17.2440 "h:m:s" Right ascension (FK5, Equinox=J2000.0) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.eq.ra)
_DEJ2000+16 22 17.796 "d:m:s" Declination (FK5, Equinox=J2000.0) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.eq.dec)
_RAB195012 14 44.8626 "h:m:s" Right ascension (FK4, Equinox=B1950.0) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.eq.ra)
_DEB1950+16 38 57.260 "d:m:s" Declination (FK4, Equinox=B1950.0) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.eq.dec)
_Glon264.8518208 deg Galactic longitude (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon)
_Glat+76.6471630 deg Galactic latitude (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat)
416699recno 416699  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

ID284576  Unique identification number for galaxies (meta.id;meta.main)
IDcl228979   [1/388773] Group/cluster ID number (Note 1)   (meta.id)
Ngal 1   [1/878] Richness of group the galaxy belongs to (meta.number)
z 0.02411  Redshift, corrected to CMB rest frame (src.redshift)
Dist 71.923 Mpc Co-moving distance of a galaxy (Note G1)   (pos.distance)
Dist.c 71.923 Mpc Co-moving distance of the group centre (Note G1)   (pos.distance)
RAJ2000184.32185 deg (i) Right ascension of galaxy (J2000) (pos.eq.ra;meta.main)
DEJ2000+16.37161 deg (i) Declination of galaxy (J2000) (pos.eq.dec;meta.main)
GLON 264.85200 deg Galactic longitude of galaxy (pos.galactic.lon)
GLAT 76.64708 deg Galactic latitude of galaxy (pos.galactic.lat)
umag15.949 mag Galactic extinction corrected Petrosian u-magnitude (phot.mag;em.opt.U)
gmag14.750 mag Galactic extinction corrected Petrosian g-magnitude (phot.mag;em.opt.B)
rmag14.279 mag Galactic extinction corrected Petrosian r-magnitude (phot.mag;em.opt.R)
imag14.074 mag Galactic extinction corrected Petrosian i-magnitude (phot.mag;em.opt.I)
zmag13.909 mag Galactic extinction corrected Petrosian z-magnitude (phot.mag;em.opt.I)
uMAG-18.37 mag Absolute u-magnitude (Note G1)   (phys.magAbs)
gMAG-19.55 mag Absolute g-magnitude (Note G1)   (phys.magAbs)
rMAG-20.05 mag Absolute r-magnitude (Note G1)   (phys.magAbs)
iMAG-20.22 mag Absolute i-magnitude (Note G1)   (phys.magAbs)
zMAG-20.41 mag Absolute z-magnitude (Note G1)   (phys.magAbs)
kcoru 0.087 mag K-correction in u-filter (arith.factor;phot.mag)
kcorg 0.019 mag K-correction in g-filter (arith.factor;phot.mag)
kcorr 0.036 mag K-correction in r-filter (arith.factor;phot.mag)
kcori-0.003 mag K-correction in i-filter (arith.factor;phot.mag)
kcorz 0.004 mag K-correction in z-filter (arith.factor;phot.mag)
Lr 0.754 10+10Lsun r-band observed luminosity (Note G1)   (phys.luminosity)
W 1.081  Weight factor for the galaxy (stat.weight)
Rank 1   [1/878] Galaxy rank in its group (stat.fit.param)
Den1 19.833   Normalised environmental density at 1Mpc/h (Note G1)   (phys.density;arith.ratio)
Den2 7.988   Normalised environmental density at 2Mpc/h (Note G1)   (phys.density;arith.ratio)
Den4 5.641   Normalised environmental density at 4Mpc/h (Note G1)   (phys.density;arith.ratio)
Den8 4.549   Normalised environmental density at 8Mpc/h (Note G1)   (phys.density;arith.ratio)
Den16 2.750   Normalised environmental density at 16Mpc/h (Note G1)   (phys.density;arith.ratio)
Edge 17.052 Mpc Co-moving distance from the survey mask (Note G1)   (pos.distance)
Mph0   [0/2] Morphology of galaxy, 1=S, 2=E (Note 2)   (meta.code;src.morph)
prE0.55  Probability of being an early type galaxy (stat.fit.goodness)
IDDR7285025  ID number to link to our previous DR7 cat (meta.id)
zobs 0.02303  Observed redshift (without CMB correction) (src.redshift;pos.heliocentric)
Distcor 71.923 Mpc Corrected co-moving distance of galaxy (G1) (in Mpc/h) (pos.distance)
fc0   [0/5] Number of missing neighbours (fibre collision) (Note G2)   (meta.number)

SloanSloan  Display the SDSS data for this galaxy (meta.ref.url)
DR8DR8  Details from the SDSS-DR8 photometry (meta.ref.url)
  
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